<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="author" content="Kodinger">
    <title>My Login Page &mdash; Bootstrap 4 Login Page Snippet</title>
    <link rel="stylesheet" type="text/css" href="/static/bootstrap/css/bootstrap.min.css">
    <link rel="stylesheet" type="text/css" href="/static/customer/css/my-login.css">
    <script type="text/javascript" src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
</head>
<body class="my-login-page">
<section class="h-100">
    <div class="container h-100">
        <div class="row justify-content-md-center h-100">
            <div class="card-wrapper">
                <div class="brand">
                    <img src="/static/customer/img/logo.jpg">
                </div>
                <div class="card fat">
                    <div class="card-body">
                        <h4 class="card-title">Register</h4>
                        <form>

                            <div class="form-group">
                                <label for="username">UserName</label>
                                <input id="username" type="text" class="form-control" name="username" required autofocus
                                       onblur="checkUsername()">
                            </div>

                            <div class="form-group">
                                <label for="password">Password</label>
                                <input id="password" type="password" class="form-control" name="password"
                                       required data-eye onblur="checkPassword()">
                            </div>

                            <div class="form-group">
                                <label for="verificationCode">验证码</label>
                                <div class="form-inline">
                                    <input id="verificationCode" type="password" name="verificationCode"
                                           style="position: relative;width: 70%;height: 40px" required data-eye
                                           placeholder="(区分大小写)" onblur="checkVerificationCode()">
                                    <canvas id="canvas" width="90" height="40" onclick="dj()"
                                            style="border: 1px solid #ccc;border-radius: 5px;"></canvas>
                                </div>
                            </div>

                            <div class="form-group no-margin">
                                <button type="button" class="btn btn-primary btn-block" onclick="register()">
                                    Register
                                </button>
                            </div>
                            <div class="margin-top20 text-center">
                                Already have an account? <a href="/view/customer-login">Login</a>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </div>
</section>
<script>
    let flag1=-2;
    let flag2=0;
    let flag3=-3;
    function checkUsername() {
        if ($("#username").val()!=null&&$("#username").val()!=""){
            $.ajax({
                url:"/user/checkUsername",
                dataType:"json",
                type:"post",
                data:{
                    username:$("#username").val()
                },
                success:function (data) {
                    if(parseInt(data.code)==500){
                        alert(data.message)
                        flag1=-1;
                    }else {
                        flag1=1;
                    }
                }
            })
        }else {
            flag1=-2;
        }
    }
    function checkVerificationCode() {
        let num = show_num.join("");
        let verificationCode=$("#verificationCode").val();
        if (verificationCode==num){
            flag2=1;
        }else {
            flag2=0;
        }
    }
    function checkPassword() {
        let password = $("#password").val();
        if (password!=null&&password!=""){
            flag3=1;
        }else {
            flag3=-3
        }
    }
    function register() {
        if (flag1==flag2==flag3){
            $.ajax({
                url: "/user/customer/register",
                dataType: "json",
                type: "post",
                data: {
                    username: $("#username").val(),
                    password: $("#password").val()
                },
                success: function (data) {
                    alert(data.message)
                    if (parseInt(data.code)==200){
                        location.href="/view/customer-login"
                    }
                },
                error:function () {
                    alert("注册请求出错")
                }
            })
        }else {
            if (flag1==-1){
                alert("用户名已经存在");
            }else if (flag1==-2){
                alert("用户名不能为空");
            }else if (flag3==-3){
                alert("密码不能为空");
            }else if (flag2==0){
                alert("验证码错误");
            }
        }
    }
</script>
<script>
    var show_num = [];
    draw(show_num);
    function dj(){
        draw(show_num);
    }
    function draw(show_num) {
        var canvas_width=document.getElementById('canvas').clientWidth;
        var canvas_height=document.getElementById('canvas').clientHeight;
        var canvas = document.getElementById("canvas");//获取到canvas的对象，演员
        var context = canvas.getContext("2d");//获取到canvas画图的环境，演员表演的舞台
        canvas.width = canvas_width;
        canvas.height = canvas_height;
        var sCode = "A,B,C,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,W,X,Y,Z,1,2,3,4,5,6,7,8,9,0,q,w,e,r,t,y,u,i,o,p,a,s,d,f,g,h,j,k,l,z,x,c,v,b,n,m";
        var aCode = sCode.split(",");
        var aLength = aCode.length;//获取到数组的长度

        for (var i = 0; i <= 3; i++) {
            var j = Math.floor(Math.random() * aLength);//获取到随机的索引值
            var deg = Math.random() * 30 * Math.PI / 180;//产生0~30之间的随机弧度
            var txt = aCode[j];//得到随机的一个内容
            show_num[i] = txt;
            var x = 10 + i * 20;//文字在canvas上的x坐标
            var y = 20 + Math.random() * 8;//文字在canvas上的y坐标
            context.font = "bold 23px 微软雅黑";

            context.translate(x, y);
            context.rotate(deg);

            context.fillStyle = randomColor();
            context.fillText(txt, 0, 0);

            context.rotate(-deg);
            context.translate(-x, -y);
        }
        for (var i = 0; i <= 5; i++) { //验证码上显示线条
            context.strokeStyle = randomColor();
            context.beginPath();
            context.moveTo(Math.random() * canvas_width, Math.random() * canvas_height);
            context.lineTo(Math.random() * canvas_width, Math.random() * canvas_height);
            context.stroke();
        }
        for (var i = 0; i <= 30; i++) { //验证码上显示小点
            context.strokeStyle = randomColor();
            context.beginPath();
            var x = Math.random() * canvas_width;
            var y = Math.random() * canvas_height;
            context.moveTo(x, y);
            context.lineTo(x + 1, y + 1);
            context.stroke();
        }
    }
    function randomColor() {//得到随机的颜色值
        var r = Math.floor(Math.random() * 256);
        var g = Math.floor(Math.random() * 256);
        var b = Math.floor(Math.random() * 256);
        return "rgb(" + r + "," + g + "," + b + ")";
    }
</script>
</body>
</html>